Andre Drummond -- I DIDN'T LEAK RACY JENNETTE McCURDY PICS!

The photos surfaced on several websites Monday ... and people immediately suspected the guy behind the leak was Drummond, since McCurdy humiliated him on a podcast over the weekend by spilling intimate details of their failed 1-week dating fling.

Moments ago, McCurdy even tweeted about the leak ... saying, "To anyone disappointed: I sent those pics to 1 person. You can connect the dots. Shocked someone would stoop so low. I just speak w/ candor."

We reached out to Drummond, who could not have been more adamant he's not to blame -- saying, "I did NOT leak any photos of JM."

The Detroit Pistons star -- who grabbed an incredible 26 rebounds last night -- adds, "I want nothing to do with her or the situation. I'm just worried about ball."